Wes has only quarters and dimes in his pocket if he has 18 coins for a total of $2.25 how many dimes and quarters does he have

The answer is he has 3 quarters and 15 dimes

Step-by-step explanation:

quarter= $.25 and dime= $.1 so 3x.25= .75 and 15x.1= 1.5 and then add and you get $2.25

3 quarters, 15 dimes

Step-by-step explanation:

1st)

.10D+.25Q=2.25

D+Q=18

2nd)

.10D+.25Q=2.25

-.10(D+Q=18) = (-.10D-.10Q=-1.8)

3rd)

(.10D+.25Q=2.25) + (-.10D-.10Q=-1.8)

Equals to

.15Q=.45

4th)

.15Q/.15Q=.45/.15Q

Equals to

Q=3

Which means there is 3 quarters

5th)

18(total number of coins) - 3(quarters) = 15(dimes)

(Answer)

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: